Car-door lock.



M. KRIEWITZ & W. F. FERRIS.

GAR DOOEl LOCK.

APPLIUATION IILBD APR. 2a. 1913.

Patented Dec. 16, 1913.

u HH fluor/ncsa t MAXKRIEWITZ AND -WILLIAMFr nanars, or FA IRFAX,OKLAHOMA; SAID FERRIS 'Assmann To SAID KRIEWITZ.

oABfDooa-Locx.

v Speciziton of LettersPatent. 'appi'ation axeaaprn 28, 19'13.

serial No. 764,277.

To eli whonm't may .concern Be it'il'mown that We,;l\,l^x 'KRIE'wrrz'and WlIsLIAiw F. .'FERRis, citizens of the'UnitedStates,[residing-at.,Fairfa-X, in the county 'of;Osage,.StateofOklahommhave inventcdr-certain new and y useful .Improvements in'Ca'r- DoorLocks; and .We do .hereby declare the following to be. aI full, clear,and exact ,description .of'th'e invention, such vas Willenable othersskilled in theart to'which it 4apper'tains.to make andus'e the same.

1`his' .v invention relates to car door locks, ,and timorepartici'ilarly relatesy to an improved combination-lock and seal cutter.Y"Iheprimary object .of this invention is to 'provideal car door lock`by which' the door may bemore'quickly and easily locked- -andunlocked'than'is possible When'locks of t usualfconstru'etion areemployed.

. :iently to impede the l.Aiiurtherobject of :the invention is tolprovide a' car door lock ofthis character which;- is equally applicableand efficacious when applic A to either side of the door.

vAnotherobject is to provide a lock of this character' in which theworking. elements .will not become jammed or bound by .the in .'ternalpressure against the car door suffi i progress `of aperson 1n unlockinglthe door. l

A.fu1ther lobject' 'is toprovide 'the lock a curved wedge elementwhere-I by t e hasp of the door is -forced to be seate around the stapleof the lock.

further object isl to provide a lock of this character bywhich the .doormay be locked with'the uttermost security.

A further object is to provide a lock of this character which isprovided with a shearing device whereby thecar seal `may be quickly andeasily cut by the initial movement of the combined locking` and shearinglever. U

Another object is to provide a car door lock of this character which issimple of construction, comparatively inexpensive,

-. and thoroughly e'licient.

Other objects and advantages 4may be ren cited lhereinafter in theclaim.

'supplement this specificati drawings, which on :-Figure l is a carhaving our applied in closed 2 is a view similar in, open position.through the side In the accompanying a fragmental portion of improvedcar door locky and locked position. Fig. to Fig. 1, the lock being` 3 isa vertical section -and this base .from sheet steel "adapted to have anordi the plate wallbf .a car, showing our improved car door lock inelevation and in locked position. Fig. t is a View similar to Fig. 3,except thatfthc lock is in open position, the car seal havingr beenshear-ed. Fig. 5 is a vertical4 sectional view vthrough the loch on theline V5%5 offFig. l, audv Fig. 6 is a transverse section rn the line 6-JS of Fig. 1,l

'Referring to these drawings, in which similar reference cha rar-terscorrespond with similar parts. tln'oun'hout the several views: The main'frame or base plate 10 is secured on the side wall 1l of a' car bymeans yoi bolts 12, or other proper securing means. plate is formed oftough and strong' sheet metal, beiney ypreferably stamped andv hasrapertured ears 13 struck up therefrom. 'lhese ears are each providedwith an inclined slot 14, these slots being disposed opposite to eachother and nary sealstrip l5 The upperend of l0 is provided with a tongue10 which is formed with a semi-cylimlrical boss 17 and au oppositegroove 1S. ln a plane aboye the ears yl'l below the boss lT is aslaplelt), which may be secured to the platelO by any proper means or inany proper way. but we' prefer that the staple 'shall be. welded fast tothe plate 1() or formed integrally' therewith. so as to obtain themaximum strength and security. The usual or any preferred form of hasp2O is adapted to be seated over the staple 19. and when such hasp issecured to the car door it will be seen that the 'staple eoactstherewith for ln'eventinp,r -the door from slidingr and openingr.' .Xcombined loelrina' and shearing` bolt or lever 21 is formed `with ahandle 22 which may be of aufy desired formation. and the opposite endof the member 2l is tapered or wedgeshaped. beine,r also4 curved or ofsemi-crescent formation as illustrated at lVith the exception `of thehandle and the semi-crescent element. the 'member 21 is preferablyquadrangular in cross section, and is provided with a' widened portion24, havingi an inclined slot 25 therethrough.

The outer surface 26 vof the semi-crescent bolt element is preferablyconvexed at right angles to the concavity Which forms the inner curve ofthe semi-crescent bolt elcment, so as to conform to the inner surface ofthe staple 19, while. the cutter elementI 27 which is normally disposedbetween the edrs passed therethrough.

Patented Dee.'16. l 913.4

A 13, is not only quadrangular in cross section, but lts outer edges aresharp and relatively hard, and may be either case hardenedor tempered,and may be formed eitherv iiitegrally with o r secured to the lever orbar ,21. The ears13 have their upper portions,

above ghe slots 14, either tempered or otherwise hardened; so thattheedges which outline these slots constitute cutting edges. A l

limiting and securing member or link 28 is formed from a length of wire,preferably of springy lmaterial, and is .curved at its media-l lportionto' form a lloop 29, while its -endportions are bent outward at 30,lying parallel at 31 and extending inward toward' each other at 32,while the portions of the` 'link between the loop 29l and the shouldersor ulcrums lie substantially parallel with each other vand are spacedapart lstiflicient-ly to reeeivethe staple 19 therebetween. The inturnedends 32 are seate'd within the groove 18,'-while the tulcrums 30 restagainst the plate 10. It will be seen that-the elements 31 lie in adifferent plane from the elements 28, so that the latter are inclined tothe plane ot .the plate 10. The loop 29 engages with the slot 25, andthe semicrescent bolt element extends `normally through the staple 19and bears against the hasp 20, so as to hold it in engagement with saidstaple, while the 'cutter element 27 fits'l However, when it is desiredto unfasten .the

door, this Wedge action is relieved when the member 21 is pulleddownward.

In operation, the operator grasps 'the handle 2,2, and pulls downwardand outward simultaneously, so that the cutter element 27 not onlypresses against the sealing strip 1 5, but also slides thereagainst, sothat the shearlng action issimilar to that of; other cutting machines ordevices, such, for instance, as a paper cutting machine, in which vtheknife is essential for producing the most eliicient operation.'v Now,assuming that the door is open and is to be closed, and locked. andassuming that the relation of the can' door and lock are suchfas isoften the case, that the hasp binds upon lthe staple, or is sprungoutward, so that it is ditlicultto seat it over the staple. ln suchevent, the pointed end of the semi-crescent bolt element is insertedbetween the hasp and staple, and in forcing this semi-crescent or wedgeelement through the staple, the hasp is-forced into its proper position,and the spring link 28 and sealing strip 15 hold the member 21 in itslocking position.

From the foregoing, it will be seen that we have. provided a car doorlock of this character which is fully capable of attaining the foregoingobjects in a thoroughly practical and efficient manner.

We do not limit our invention tothe exactfdetails of construction,combination and arrangement of parts, as herewith illustrated anddescribed, but our invention may only b e limited by a reasonable'interpreta-v tion of the claim.

7e claim A car door lockconsisting of la staple adapted to. engage witha 'hasp, a slotted locking member having' a wedge-shaped end portionextending through the staple and securing the hasp thereon, meanscoacting with a sealing elementfor' retaining the member in engagementwith the staple, and4 a link extending through the slot of said memberlfor allowing it to movelongitudinally seas to disengage it from thesealing element and to simultaneously disengage it from the staple, saidlink being adapted to support said member when in its inoperativeposition. 4 A

In testimony whereof, we atlixV our signatures-in the presence of twowitnesses.

MAX KRIEVVITZ'. A VILLIAM F. FERRIS.l Witnesses:

JAMES QUARLES, 'FRED J. CARROLL.

